Extension point to provide model validator instance. Use the osgi:{extension id} syntax in AD_ModelValidator.ModelValidationClass to reference the extension that will provide the concrete ModelValidator instance ( replace {extension id} with your actual extension id ). Alternatively, you can use the EventManager service to listen to model and document event which doesn't need any AD table entry ( see event.test project for example ). Implementation class name for the org.compiere.model.ModelValidator interface 1.0.0 <extension id="org.adempiere.extend.myModelValidator" name="My Model Validator" point="org.adempiere.base.ModelValidator"> <listener class="org.adempiere.extend.MyModelValidator" priority="0"> </listener> </extension> The class attribute must represent an implementor of org.compiere.model.ModelValidator /****************************************************************************** * This file is part of Adempiere ERP Bazaar * * http://www.adempiere.org * * * * Copyright (C) Jorg Viola * * Copyright (C) Contributors * * * * This program is free software; you can redistribute it and/or modify it * * under the terms version 2 of the GNU General Public License as published * * by the Free Software Foundation. This program is distributed in the hope * * that it will be useful, but WITHOUT ANY WARRANTY; without even the implied * * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * * with this program; if not, write to the Free Software Foundation, Inc., * * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. * * * * Contributors: * *****************************************************************************/